ETA 2: I've uploaded AICN's .flv version of the trailer here in case you can't get to their page either. It's small and blurry, but there you are. Go see The Dark Knight, you'll see the trailer there.
ETA 3: I Watch Stuff got a good Dr. Manhattan screencap before it went down.
ETA 4: OMG HI-RES FROM meimi I DIE.
ETA 5: I have